Here are a couple of very good short articles on the BBC about the very nature of democracy as a system of government and how, in and of themselves, just having elections to pick your leaders is not enough:
http://www.bbc.co.uk/news/magazine-23607302
This one covers the ground wherein the, to me at least, salient strength of a democratic system is that we, the electorate, and those that govern, all tacitly collude that, even when we passionately disagree with someone's politics, we acknowledge the legitimacy of their views and position:
http://www.bbc.co.uk/news/magazine-23723465
http://www.bbc.co.uk/news/magazine-23607302
This one covers the ground wherein the, to me at least, salient strength of a democratic system is that we, the electorate, and those that govern, all tacitly collude that, even when we passionately disagree with someone's politics, we acknowledge the legitimacy of their views and position:
http://www.bbc.co.uk/news/magazine-23723465